<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="./reset.css" />
    <title>Document</title>
    <style>
      #container {
        background-color: blanchedalmond;
      }
      #left {
        float: left;
        width: 300px;
        background-color: brown;
      }
      #right {
        margin-left: 300px;
        background-color: cornflowerblue;
      }
    </style>
  </head>
  <body>
    <div id="container">
      <div id="left">
        <h5>left</h5>
      </div>
      <div id="right">
        <h5>right</h5>
      </div>
    </div>
  </body>
</html>
